CAJ | 학술논문

针对综采大跨度回采巷道顶板难以控制的现场实际,在分析了单层岩层稳定性的主要影响因素基础上,运用UDEC3.0数值模拟软件深入研究了由单层岩层组合而成的回采巷道顶板稳定性的影响因素及其变形破坏规律.提出了通过合理布置锚索的位置,达到锚杆-锚索协同支护的减跨作用,在此基础上发挥锚杆的组合梁(拱)及悬吊作用以控制大跨度回采巷道冒顶事故的新的支护思想,并将其应用于神东矿区补连塔煤矿大跨度回采巷道,取得了良好的现场应用效果.
침대종채대과도회채항도정판난이공제적현장실제,재분석료단층암층은정성적주요영향인소기출상,운용UDEC3.0수치모의연건심입연구료유단층암층조합이성적회채항도정판은정성적영향인소급기변형파배규률.제출료통과합리포치묘색적위치,체도묘간-묘색협동지호적감과작용,재차기출상발휘묘간적조합량(공)급현조작용이공제대과도회채항도모정사고적신적지호사상,병장기응용우신동광구보련탑매광대과도회채항도,취득료량호적현장응용효과.
Aiming at the locale facts of difficult roof controlling for large span gateway of fully-mechanized coal faces,based on analysis of the influence factors of monolayer strata stability.the numerical simulation soft UDEC3.ois employed to deeply research influence factors and changing rules of roof stability of the gateway which is composed by some monolayer strata.A new supporting idea of reducing span supporting function by bolts cooper-ating with anchor cables is brought forward by disposing anchor cables at the appropriate locations,the traditional supporting theory such as suspensory and compounding beam (arch) are still operated at the sanle time.A good re.suh is achieved after the new supporting idea is applied in the large span gateway of Bulianta Colliery in Shendong diggings.